PatchSiren cyber security CVE debrief
CVE-2026-62705 Microsoft CVE debrief
Microsoft has released a patch for a local elevation of privilege vulnerability in Windows Bind Filter Driver. The vulnerability is a race condition that allows an authorized attacker to elevate privileges locally. This issue affects Windows 11 Version 24H2, Windows 11 Version 25H2, and Windows 11 version 26H1. System administrators should review configurations and apply patches to mitigate this vulnerability. The vulnerability's impact is significant as it allows local privilege escalation, which can lead to unauthorized access and control of affected systems.
- Vendor
- Microsoft
- Product
- Windows 11
- CVSS
- HIGH 7
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-11
- Original CVE updated
- 2026-10-08
- Advisory published
- 2026-08-11
- Advisory updated
- 2026-10-08
Who should care
Windows system administrators and security teams should assess exposure and apply patches. They should also review system configurations to prevent exposure and monitor for suspicious activity indicating attempted exploitation. This vulnerability poses a significant risk to Windows systems, and immediate patching and monitoring are recommended.
Why it matters
This vulnerability allows an authorized attacker to elevate privileges locally, posing a significant risk to Windows systems. Immediate patching and monitoring are recommended.
- Local privilege escalation requires immediate patching
- Verify system configurations to prevent exposure
- Monitor for suspicious activity indicating attempted exploitation
Technical summary
The vulnerability is a race condition in Windows Bind Filter Driver that allows an authorized attacker to elevate privileges locally. Affected versions include Windows 11 Version 24H2, Windows 11 Version 25H2, and Windows 11 version 26H1. The vulnerability can be mitigated by applying patches for affected Windows versions. System administrators should assess exposure and apply patches immediately, especially for systems exposed to local attacks.
Defensive priority
Apply patches for affected Windows versions immediately, especially for systems exposed to local attacks.
Recommended defensive actions
- Apply patches for affected Windows versions
- Review system configurations for exposure
- Monitor for suspicious local activity
Evidence notes
The CVE record and NVD entry provide details on the vulnerability. Specific exploitation details are not available, but it is confirmed that the vulnerability exists in Windows 11 Version 24H2, Windows 11 Version 25H2, and Windows 11 version 26H1. Defenders should verify system configurations and apply patches to affected versions. The CVE Program and NVD provide official details, but additional sources may offer further insights into affected systems and mitigation strategies.
Sources and references
Verified primary and authoritative sources
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CVE-2026-62705 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-62705
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-62705 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62705
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Microsoft Brokering File System Elevation of Privilege Vulnerability
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/62xxx/CVE-2026-62705.json
cve_program_cvelist_v5
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Source reference
Unverified legacy reference
URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62705
Supplemental source - vendor-advisory, patch
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.